单项选择题
This growth,（）mainly in Southeast Asia and Africa, has dramatic consequences.
A.happens B.which is happening C.which happening D.which happened
单项选择题 Sixty million people who（）in rural areas are moving to cities every year.
单项选择题 I spent most of my money in the first week and（）had very little for food at the end of the holiday.
单项选择题 He is trying to find a new way to（）a living. Which of the following is incorrect.
